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Complex Numbers
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A basic recap on complex numbers with some helpful examples:
http://tutorial.math.lamar.edu/Extras/ComplexPrimer/ComplexNumbers.aspx
A short worksheet on how to find the square root of a complex number:
http://www.mathpropress.com/stan/bibliography/complexSquareRoot.pdf
In class we mentioned that 1/i = -i and i feel like the proof is too easy..
just cross multiply: 1 = -i^2
= -(sqrt(-1))^2
= -(-1)
= 1
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A basic recap on complex numbers with some helpful examples:
http://tutorial.math.lamar.edu/Extras/ComplexPrimer/ComplexNumbers.aspx
A short worksheet on how to find the square root of a complex number:
http://www.mathpropress.com/stan/bibliography/complexSquareRoot.pdf
In class we mentioned that 1/i = -i and i feel like the proof is too easy..
just cross multiply: 1 = -i^2
= -(sqrt(-1))^2
= -(-1)
= 1